EditorView.java 文件源码

/**
 * Builds the editor view.
 *
 * @param activity        The activity on top of which the UI should be displayed.
 * @param observerForTest Optional event observer for testing.
 */
public EditorView(Activity activity, PaymentRequestObserverForTest observerForTest) {
    super(activity, R.style.FullscreenWhite);
    mContext = activity;
    mObserverForTest = observerForTest;
    mHandler = new Handler();
    mEditorActionListener = new TextView.OnEditorActionListener() {
        @Override
        public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
            if (actionId == EditorInfo.IME_ACTION_DONE) {
                mDoneButton.performClick();
                return true;
            } else if (actionId == EditorInfo.IME_ACTION_NEXT) {
                View next = v.focusSearch(View.FOCUS_FORWARD);
                if (next != null) {
                    next.requestFocus();
                    return true;
                }
            }
            return false;
        }
    };

    mHalfRowMargin = activity.getResources().getDimensionPixelSize(
            R.dimen.payments_section_large_spacing);
    mFieldViews = new ArrayList<>();
    mEditableTextFields = new ArrayList<>();
    mDropdownFields = new ArrayList<>();

    final Pattern cardNumberPattern = Pattern.compile("^[\\d- ]*$");
    mCardNumberInputFilter = new InputFilter() {
        @Override
        public CharSequence filter(
                CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
            // Accept deletions.
            if (start == end) return null;

            // Accept digits, "-", and spaces.
            if (cardNumberPattern.matcher(source.subSequence(start, end)).matches()) {
                return null;
            }

            // Reject everything else.
            return "";
        }
    };

    mCardNumberFormatter = new CreditCardNumberFormattingTextWatcher();
    new AsyncTask<Void, Void, PhoneNumberFormattingTextWatcher>() {
        @Override
        protected PhoneNumberFormattingTextWatcher doInBackground(Void... unused) {
            return new PhoneNumberFormattingTextWatcher();
        }

        @Override
        protected void onPostExecute(PhoneNumberFormattingTextWatcher result) {
            mPhoneFormatter = result;
            if (mPhoneInput != null) {
                mPhoneInput.addTextChangedListener(mPhoneFormatter);
            }
        }
    }.execute();
}